Lucas Russell Barnes, 25, and Kathleen Peacock, 22, ignored their son for at least 38 hours while they made and used methamphetamine in their St. Charles mobile home, an arrest affidavit filed by prosecutors said.

When they finally returned to their son’s room about 11 a.m. Sunday, it was too late to do anything for the toddler, who could be heard making noise when he was alone, Peacock told police.

The mother, who is currently pregnant, “explained that she heard Braydon make noise from his room and that she knew she should check on Braydon, but she did not,” the affidavit said.

Braydon’s parents were believed to be home the entire time he was left unattended.

Peacock was already facing a child endangerment charge from August for allegedly driving drunk with Braydon in the car, according to reports.

The couple’s mobile home has been condemned and deemed uninhabitable due to unsanitary conditions, including “feces in places where it shouldn’t be” and “a lot of dishes,” St. Charles County Prosecutor Tim Lohmar told reporters.

She later said on social media that Barnes was her son, “And I want to kill him.”

Barnes, an avid user of social media, recently posted on Facebook that he was thankful to God “for the blessings you bestowed upon me” including “beautiful children” and a “loving woman.”

That same day he posted a photo of text that read: “Unless you have been strung-out on dope, broke, homeless, in prison and lost every f****** thing you own… don’t talk s*** to me about how bad you have it. F*** you.”

He added: “Been there done almost all of (them) never prison though and here I am today holding my head high thankful for the lessons I learned.”